A Treatise concerning the True Method of finding the Proper Area of the Sails for Ships of the Line, and from thence the length of masts and yards. (Supplement, taken from the "New Transactions of the Swedish Academy of Sciences" ... concerning a true method for finding the height of the centre of gravity in a ship, etc.) [By F. H. af Chapman. Translated from the Swedish. With diagrams.]
Society for the Improvement of Naval Architecture (LONDON)
Free